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          <h1 class="post-title" itemprop="name headline">EOCS框架概述和剖析</h1>
        

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        <h2 id="什么是EOCS？"><a href="#什么是EOCS？" class="headerlink" title="什么是EOCS？"></a>什么是EOCS？</h2><p>EOCS(Enterprise Operation Cross System),是一个基于eosio底层框架实现的企业级跨链操作系统，旨在实现和EOS主链通信的并行链，是真正意义的跨链，支持高效稳定的跨链交易，为跨链生态建设提供更稳定和安全的平台。作为可与EOS主链交互操作的第一条并行链，EOCS Chain力图实现安全可靠、快捷便利的跨链资产转移、跨链智能合约调用。任何人都可以在EOCS Chain并行链上开发或使用跨链DAPP。</p>
<h2 id="为什么选择EOCS？"><a href="#为什么选择EOCS？" class="headerlink" title="为什么选择EOCS？"></a>为什么选择EOCS？</h2><h3 id="互操作性"><a href="#互操作性" class="headerlink" title="互操作性"></a>互操作性</h3><p>EOCS Chain并行链允许EOS主链与主流公有链、联盟链、私有链互相通信和价值交换。</p>
<h3 id="可扩展性"><a href="#可扩展性" class="headerlink" title="可扩展性"></a>可扩展性</h3><p>通过多链互联互操作，EOCS Chain可帮助EOS实现史无前例的无限扩展。</p>
<h3 id="开发友好性"><a href="#开发友好性" class="headerlink" title="开发友好性"></a>开发友好性</h3><p>EOCS Chain延续了EOS软件堆栈的WebAssembly机制，可以非常轻松地开发DAPP。<br><a id="more"></a></p>
<h2 id="EOCS发展路径"><a href="#EOCS发展路径" class="headerlink" title="EOCS发展路径"></a>EOCS发展路径</h2><p><img src="1.jpg" alt="1.jpg"></p>
<h2 id="EOCS核心竞争力"><a href="#EOCS核心竞争力" class="headerlink" title="EOCS核心竞争力"></a>EOCS核心竞争力</h2><h3 id="EOCS-Chain并行链与EOS主链之间的同构跨链，涉及以下组件："><a href="#EOCS-Chain并行链与EOS主链之间的同构跨链，涉及以下组件：" class="headerlink" title="EOCS Chain并行链与EOS主链之间的同构跨链，涉及以下组件："></a>EOCS Chain并行链与EOS主链之间的同构跨链，涉及以下组件：</h3><p>同构跨链协议（Isomorphic Inter-Chain Protocol, ICP） 同构跨链合约，在并行链和主链上同时部署，支持跨链协议包的解析，证明的验证和存储，以及EOS原生币（EOS）、EOCS Chain原生币（EOCS）、EOS代币的跨链资产转移 同构跨链通道，通过逻辑证明确保通道建立的稳定性和安全性。 中继者，将跨链协议包在并行链和主链之间安全快速地传输</p>
<h3 id="EOCS-Chain异构跨链尝试与探索"><a href="#EOCS-Chain异构跨链尝试与探索" class="headerlink" title="EOCS Chain异构跨链尝试与探索"></a>EOCS Chain异构跨链尝试与探索</h3><p>我们相信未来的区块链不仅在去中心化社区中得到商业落地前景，千万中小企业同样需要区块链作为价值传递的基础服务，未来不仅是公有链、联盟链还是企业内部的私有链，都需要在一个公用网络中进行价值传递和证明。 作为第一条EOS同构并行链，我们将在开发EOCS Chain的基础上，继续探索和研究异构链的跨链协议，不仅要为EOS生态做出支持百万TPS的并行链体系，更要为整个EOS体系连接异构链做出创造性的贡献，作为连接EOS主链及整个EOS跨链群体系与其他区块链链的纽带，为所有异构区块链公链、联盟链、私有链实现安全、快捷、无限扩展的区块链生态体系!</p>
<h2 id="EOCS整体框架简图"><a href="#EOCS整体框架简图" class="headerlink" title="EOCS整体框架简图"></a>EOCS整体框架简图</h2><p><img src="2.jpg" alt="2.jpg"></p>
<h2 id="如何使用EOCS"><a href="#如何使用EOCS" class="headerlink" title="如何使用EOCS"></a>如何使用EOCS</h2><h3 id="编译和部署"><a href="#编译和部署" class="headerlink" title="编译和部署"></a>编译和部署</h3><p>EOCS 支持多种Linux操作系统，mac，centos，ubuntu等等，可以去github下载源码并编译，源码下载地址，<a href="https://github.com/eocschain/eocs" target="_blank" rel="noopener">https://github.com/eocschain/eocs</a>。<br>在自己的工作目录(可自己设定)执行命令 git clone <a href="https://github.com/eocschain/eocs" target="_blank" rel="noopener">https://github.com/eocschain/eocs</a> 更新下载源码。下载后文件组织结构如下<br><img src="3.png" alt="3.png"><br>在该目录下执行eosio_build.sh,会生成build目录，执行成功会提示build success!!!</p>
<h3 id="填写配置"><a href="#填写配置" class="headerlink" title="填写配置"></a>填写配置</h3><p>在~/.local/share/eosio目录下有config和data文件夹，修改config.ini即可。<br><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment"># Override default WASM runtime (eosio::chain_plugin)</span></span><br><span class="line">wasm-runtime = wabt</span><br><span class="line"></span><br><span class="line"><span class="comment"># print contract's output to console (eosio::chain_plugin)</span></span><br><span class="line"><span class="comment"># 方便观察跨链合约打印信息</span></span><br><span class="line">contracts-console = true</span><br><span class="line"></span><br><span class="line"><span class="comment"># The local IP and port to listen for incoming http connections; set blank to disable. (eosio::http_plugin)</span></span><br><span class="line"><span class="comment"># 链1为127.0.0.1:8888，链2为127.0.0.1:8889</span></span><br><span class="line">http-server-address = <span class="number">127.0</span><span class="number">.0</span><span class="number">.1</span>:<span class="number">8888</span> <span class="comment"># 或 127.0.0.1:8889</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># The endpoint upon which to listen for incoming connections (eosio::icp_relay_plugin)</span></span><br><span class="line"><span class="comment"># 链1为0.0.0.0:8765，链2为0.0.0.0:8766</span></span><br><span class="line">icp-relay-endpoint = <span class="number">0.0</span><span class="number">.0</span><span class="number">.0</span>:<span class="number">8765</span> <span class="comment"># 或 0.0.0.0:8766</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># The number of threads to use to process network messages (eosio::icp_relay_plugin)</span></span><br><span class="line"><span class="comment"># icp-relay-threads = </span></span><br><span class="line"></span><br><span class="line"><span class="comment"># Remote endpoint of other node to connect to (may specify multiple times) (eosio::icp_relay_plugin)</span></span><br><span class="line"><span class="comment"># 链1为127.0.0.1:8766，链2为127.0.0.1:8765；其实只要填一个，使得两条链的ICP插件能够连接上</span></span><br><span class="line">icp-relay-connect = <span class="number">127.0</span><span class="number">.0</span><span class="number">.1</span>:<span class="number">8766</span> <span class="comment"># 或 127.0.0.1:8765</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># The chain id of icp peer (eosio::icp_relay_plugin)</span></span><br><span class="line"><span class="comment"># 链1填写链2的chain id，链2填写链1的chain id，可参考后文获取方式后再填写</span></span><br><span class="line">icp-relay-peer-chain-id = <span class="number">630</span>f427c3007b42929032bc02e5d6fded325b3e2caf592f963070381b2787a9d</span><br><span class="line"></span><br><span class="line"><span class="comment"># The peer icp contract account name (eosio::icp_relay_plugin)</span></span><br><span class="line"><span class="comment"># 对端ICP合约账户名；链1填写链2上跨链合约账户名，链2填写链1上跨链合约账户名</span></span><br><span class="line">icp-relay-peer-contract = eocseosioicp</span><br><span class="line"></span><br><span class="line"><span class="comment"># The local icp contract account name (eosio::icp_relay_plugin)</span></span><br><span class="line"><span class="comment"># 本端ICP合约账户名；链1填写链1上跨链合约账户名，链2填写链2上跨链合约账户名</span></span><br><span class="line">icp-relay-local-contract = eocseosioicp</span><br><span class="line"></span><br><span class="line"><span class="comment"># The account and permission level to authorize icp transactions on local icp contract, as in 'account@permission' (eosio::icp_relay_plugin)</span></span><br><span class="line"><span class="comment"># ICP插件向本端ICP合约发送交易时使用的账户名</span></span><br><span class="line">icp-relay-signer = eocseosrelay@active</span><br><span class="line"></span><br><span class="line"><span class="comment"># The actual host:port used to listen for incoming p2p connections. (eosio::net_plugin)</span></span><br><span class="line"><span class="comment"># 链1为0.0.0.0:9876，链2为0.0.0.0:9877</span></span><br><span class="line">p2p-listen-endpoint = <span class="number">0.0</span><span class="number">.0</span><span class="number">.0</span>:<span class="number">9876</span> <span class="comment"># 或 0.0.0.0:9877</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># Limits the maximum time (in milliseconds) that is allowed a pushed transaction's code to execute before being considered invalid (eosio::producer_plugin)</span></span><br><span class="line"><span class="comment"># 设置足够大的最大交易执行时间，可参看ICP Challenges中关于计算量的说明</span></span><br><span class="line">max-transaction-time = <span class="number">300</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># ID of producer controlled by this node (e.g. inita; may specify multiple times) (eosio::producer_plugin)</span></span><br><span class="line"><span class="comment"># 这里测试链仅使用生产者eosio</span></span><br><span class="line">producer-name = eosio</span><br><span class="line"></span><br><span class="line"><span class="comment"># 填写账户eosio的公私钥，这里使用了默认值</span></span><br><span class="line">signature-provider = EOS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV=KEY:<span class="number">5</span>KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3</span><br><span class="line"></span><br><span class="line"><span class="comment"># 插件</span></span><br><span class="line">plugin = eosio::chain_api_plugin</span><br></pre></td></tr></table></figure></p>
<h3 id="启动节点"><a href="#启动节点" class="headerlink" title="启动节点"></a>启动节点</h3><p>进入build/programs/nodes,执行nodes,启动节点<br>到此为止，EOCS概述和节点启动简介完毕，下一篇为大家带来EOCS的跨链设计和源码剖析</p>

      
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                      start: start,
                      end: end,
                      searchTextCount: searchTextCountInSlice
                    };
                  }

                  var slicesOfTitle = [];
                  if (indexOfTitle.length != 0) {
                    slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
                  }

                  var slicesOfContent = [];
                  while (indexOfContent.length != 0) {
                    var item = indexOfContent[indexOfContent.length - 1];
                    var position = item.position;
                    var word = item.word;
                    // cut out 100 characters
                    var start = position - 20;
                    var end = position + 80;
                    if(start < 0){
                      start = 0;
                    }
                    if (end < position + word.length) {
                      end = position + word.length;
                    }
                    if(end > content.length){
                      end = content.length;
                    }
                    slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
                  }

                  // sort slices in content by search text's count and hits' count

                  slicesOfContent.sort(function (sliceLeft, sliceRight) {
                    if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
                      return sliceRight.searchTextCount - sliceLeft.searchTextCount;
                    } else if (sliceLeft.hits.length !== sliceRight.hits.length) {
                      return sliceRight.hits.length - sliceLeft.hits.length;
                    } else {
                      return sliceLeft.start - sliceRight.start;
                    }
                  });

                  // select top N slices in content

                  var upperBound = parseInt('1');
                  if (upperBound >= 0) {
                    slicesOfContent = slicesOfContent.slice(0, upperBound);
                  }

                  // highlight title and content

                  function highlightKeyword(text, slice) {
                    var result = '';
                    var prevEnd = slice.start;
                    slice.hits.forEach(function (hit) {
                      result += text.substring(prevEnd, hit.position);
                      var end = hit.position + hit.length;
                      result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
                      prevEnd = end;
                    });
                    result += text.substring(prevEnd, slice.end);
                    return result;
                  }

                  var resultItem = '';

                  if (slicesOfTitle.length != 0) {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
                  } else {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
                  }

                  slicesOfContent.forEach(function (slice) {
                    resultItem += "<a href='" + articleUrl + "'>" +
                      "<p class=\"search-result\">" + highlightKeyword(content, slice) +
                      "...</p>" + "</a>";
                  });

                  resultItem += "</li>";
                  resultItems.push({
                    item: resultItem,
                    searchTextCount: searchTextCount,
                    hitCount: hitCount,
                    id: resultItems.length
                  });
                }
              })
            };
            if (keywords.length === 1 && keywords[0] === "") {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
            } else if (resultItems.length === 0) {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
            } else {
              resultItems.sort(function (resultLeft, resultRight) {
                if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
                  return resultRight.searchTextCount - resultLeft.searchTextCount;
                } else if (resultLeft.hitCount !== resultRight.hitCount) {
                  return resultRight.hitCount - resultLeft.hitCount;
                } else {
                  return resultRight.id - resultLeft.id;
                }
              });
              var searchResultList = '<ul class=\"search-result-list\">';
              resultItems.forEach(function (result) {
                searchResultList += result.item;
              })
              searchResultList += "</ul>";
              resultContent.innerHTML = searchResultList;
            }
          }

          if ('auto' === 'auto') {
            input.addEventListener('input', inputEventFunction);
          } else {
            $('.search-icon').click(inputEventFunction);
            input.addEventListener('keypress', function (event) {
              if (event.keyCode === 13) {
                inputEventFunction();
              }
            });
          }

          // remove loading animation
          $(".local-search-pop-overlay").remove();
          $('body').css('overflow', '');

          proceedsearch();
        }
      });
    }

    // handle and trigger popup window;
    $('.popup-trigger').click(function(e) {
      e.stopPropagation();
      if (isfetched === false) {
        searchFunc(path, 'local-search-input', 'local-search-result');
      } else {
        proceedsearch();
      };
    });

    $('.popup-btn-close').click(onPopupClose);
    $('.popup').click(function(e){
      e.stopPropagation();
    });
    $(document).on('keyup', function (event) {
      var shouldDismissSearchPopup = event.which === 27 &&
        $('.search-popup').is(':visible');
      if (shouldDismissSearchPopup) {
        onPopupClose();
      }
    });
  </script>





  

  

  

  
  

  

  

  

</body>
</html>
